Home / 6,876.04-9,489.40-3,891.88

Finding the Fourth Proportional to 6,876.04, 9,489.40 and 3,891.88

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Solution

The fourth proportional to 6,876.04, 9,489.40 and 3,891.88 is: 5,371.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,876.04 : 9,489.40 = 3,891.88 : x
  2. Step 2: Convert to fraction form
    6,876.04/9,489.40 = 3,891.88/x
  3. Step 3: Cross multiply
    6,876.04x = 9,489.40 × 3,891.88
  4. Step 4: Simplify right side
    6,876.04x = 36,931,606.07
  5. Step 5: Solve for x
    x = 36,931,606.07/6,876.04
  6. Step 6: Final answer
    x = 5,371.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.